package com.chensu.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.chensu.common.R;
import com.chensu.entity.Employee;
import com.chensu.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.ibatis.annotations.Lang;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.cassandra.CassandraProperties;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1.将页面提交的密码进行加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        //2.根据用户名查询数据库
        LambdaQueryWrapper<Employee> lqcw = new LambdaQueryWrapper<>();
        lqcw.eq(Employee::getUsername, employee.getUsername());
        //3.密码比对,
        lqcw.eq(Employee::getPassword, password);
        Employee emp = employeeService.getOne(lqcw);
        //4.如果没有查询到返回失败结果
        if (emp == null) {
            return R.error("登录失败");
        }
        if (emp.getStatus() == 0) {
            return R.error("账号被封,请重新注册");
        }
        //登录成功,将员工id存入session并返回登录成功
        request.getSession().setAttribute("employee", emp.getId());
        emp.setPassword("");
        return R.success(emp);//密码时敏感信息,不返回
    }

    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request) {
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     *
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee) {
        log.info("新增员工信息:{}", employee.toString());
        //设置员工初始密码为123456,并进行md5加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //获取当前登录的id
        //Long empId = (Long) request.getSession().getAttribute("employee");
        //employee.setCreateUser(empId);
        //employee.setUpdateUser(empId);
        employeeService.save(employee);
        return R.success("账号创建成功");
    }

    /**
     *员工信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize,String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序时间
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id修改员工状态信息
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        //Long employee1 = (Long) request.getSession().getAttribute("employee");
        //employee.setUpdateTime(LocalDateTime.now());
        //employee.setUpdateUser(employee1);
        employeeService.updateById(employee);
        return R.success("员工状态修改成功");
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        Employee byId = employeeService.getById(id);
        if(byId!=null){
            return R.success(byId);
        }
        return R.error("没有找到");
    }
}
